Hollywood is mourning the shocking demise of actress Michelle Trachtenberg, who died at the age of 39.
Best known for her roles in 'Buffy the Vampire Slayer' and 'Gossip Girl', Trachtenberg’s death has left fans and fellow actors in shock. On Thursday morning, several Hollywood stars took to their handles to pay tribute to the actress whose film and television career spans over two decades. Blake Lively, her 'Gossip Girl' co-star, joined other cast members like Taylor Momsen, Kelly Rutherford and Ed Westwick to pay tribute to the late star.